Python dependency

I just upgraded my Suse Leap 42.3 system to Kopano 8.5.4.
The tricky part is that the search depends on python-kopano in version 8.5.4. But the repository only provides python3-kopano.
The solution is probably simple but I just don’t get it.

Thanks for the hint. I got around this problem and installed everything based on python3. But now I get the following
when I try to start the search server:
File “/usr/lib/python3.4/site-packages/kopano/folder.py”, line 76, in <module>
from . import item as _item
File “/usr/lib/python3.4/site-packages/kopano/item.py”, line 102, in <module>
from .appointment import Appointment
File “/usr/lib/python3.4/site-packages/kopano/appointment.py”, line 30, in <module>
from . import utils as _utils
ImportError: cannot import name ‘utils’